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<h2><span class="refentrytitle">Class template base_from_member</span></h2>
<p>boost::base_from_member</p>
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<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../utility/utilities/base_from_member.html#header.boost.utility.base_from_member_hpp" title="Header &lt;boost/utility/base_from_member.hpp&gt;">boost/utility/base_from_member.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> MemberType<span class="special">,</span> <span class="keyword">int</span> UniqueID <span class="special">=</span> <span class="number">0</span><span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="base_from_member.html" title="Class template base_from_member">base_from_member</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// <a class="link" href="base_from_member.html#boost.base_from_memberconstruct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="special">...</span> T<span class="special">,</span> 
           <span class="keyword">typename</span> EnableIf <span class="special">=</span> <span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">enable_if_unrelated</span><span class="special">&lt;</span><a class="link" href="base_from_member.html" title="Class template base_from_member">base_from_member</a><span class="special">,</span> <span class="identifier">T</span><span class="special">...</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span><span class="special">&gt;</span> 
    <span class="keyword">explicit</span> <a class="link" href="base_from_member.html#idm1178-bb"><span class="identifier">base_from_member</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">(</span><span class="identifier">BOOST_NOEXCEPT_EXPR</span><span class="special">(</span><span class="special">::</span><span class="keyword">new</span><span class="special">(</span><span class="special">(</span><span class="keyword">void</span> <span class="special">*</span><span class="special">)</span> <span class="number">0</span><span class="special">)</span> <span class="identifier">MemberType</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span> <span class="special">&gt;</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span><span class="special">...</span><span class="special">)</span><span class="special">)</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idm1289"></a><h2>Description</h2>
<div class="refsect2">
<a name="idm1291"></a><h3>
<a name="boost.base_from_memberconstruct-copy-destruct"></a><code class="computeroutput">base_from_member</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="special">...</span> T<span class="special">,</span> 
         <span class="keyword">typename</span> EnableIf <span class="special">=</span> <span class="keyword">typename</span> <span class="special">::</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">detail</span><span class="special">::</span><span class="identifier">enable_if_unrelated</span><span class="special">&lt;</span><a class="link" href="base_from_member.html" title="Class template base_from_member">base_from_member</a><span class="special">,</span> <span class="identifier">T</span><span class="special">...</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span><span class="special">&gt;</span> 
  <span class="keyword">explicit</span> <a name="idm1178-bb"></a><span class="identifier">base_from_member</span><span class="special">(</span><span class="identifier">T</span> <span class="special">&amp;&amp;</span><span class="special">...</span> x<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">(</span><span class="identifier">BOOST_NOEXCEPT_EXPR</span><span class="special">(</span><span class="special">::</span><span class="keyword">new</span><span class="special">(</span><span class="special">(</span><span class="keyword">void</span> <span class="special">*</span><span class="special">)</span> <span class="number">0</span><span class="special">)</span> <span class="identifier">MemberType</span><span class="special">(</span><span class="keyword">static_cast</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&amp;&amp;</span> <span class="special">&gt;</span><span class="special">(</span><span class="identifier">x</span><span class="special">)</span><span class="special">...</span><span class="special">)</span><span class="special">)</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div>
</div>
<div class="refsect2">
<a name="idm1359"></a><h3>Specializations</h3>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><a class="link" href="base_from_member_M_idm1187.html" title="Class template base_from_member&lt;MemberType &amp;, UniqueID&gt;">Class template base_from_member&lt;MemberType &amp;, UniqueID&gt;</a></p></li></ul></div>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2001 Beman Dawes<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
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